Android Question inline java and javaobject

#if java
    import com.vanstone.appsdk.client.ISdkStatue;
    import com.vanstone.trans.api.PrinterApi;
    import com.vanstone.trans.api.SystemApi;
    import com.vanstone.utils.CommonConvert;

    import android.app.Activity;
    import android.content.Context;
    import android.os.Bundle;
    import android.util.Log;

    int pflag = 0;
    Activity cActivity;

    public void setTestContext(Activity activity) {
        cActivity = activity;
    }

    public void initialized_api(Activity activity) {
        /*
        new Thread() {
            public void run() {
                SystemApi.SystemInit_Api(0, CommonConvert.StringToBytes(getCurAppDir() + "/" + "\0"), activity, new ISdkStatue() {
                    @Override
                    public void sdkInitSuccessed() {
                        pflag = 1;
                    }

                    @Override
                    public void sdkInitFailed() {
                        pflag = 0;
                    }
                });
            }
        }.start();*/
        
        SystemApi.SystemInit_Api(0, CommonConvert.StringToBytes(getCurAppDir() + "/" + "\0"), activity, new ISdkStatue() {
            @Override
            public void sdkInitSuccessed() {
                pflag = 1;
            }

            @Override
            public void sdkInitFailed() {
                pflag = 0;
            }
        });
    }

    public String getCurAppDir() {
        String CurAppDir = this.getApplicationContext().getFilesDir().getAbsolutePath();

        return CurAppDir;
    }

    public Activity getCurrentContext() {
        return cActivity;
    }

    public int getFlag() {
        return pflag;
    }

    public void PrtCardInfo() {
        PrinterApi.PrnClrBuff_Api();
        PrinterApi.PrnFontSet_Api(32, 32, 0);
        PrinterApi.PrnSetGray_Api(15);
        PrinterApi.PrnLineSpaceSet_Api((short) 5, 0);
        PrinterApi.PrnStr_Api("     POS Receipt");
        PrinterApi.PrnFontSet_Api(24, 24, 0);
        PrinterApi.PrnStr_Api("               CARDHOLDER COPY");
        PrinterApi.PrnStr_Api("--------------------------------");
        PrinterApi.PrnStr_Api("MERCHANT NAME:");
        PrinterApi.PrnStr_Api("CARREFOUR");
        PrinterApi.PrnStr_Api("MERCHANT NO.: 941160147848170");
        PrinterApi.PrnStr_Api("120401124594");
        PrinterApi.PrnStr_Api("TERMINAL NO.: ");
        PrinterApi.PrnStr_Api("TRANS TYPE.: ");
        PrinterApi.PrnFontSet_Api(32, 32, 0);
        PrinterApi.PrnStr_Api("Sale");
        PrinterApi.PrnFontSet_Api(24, 24, 0);
        PrinterApi.PrnStr_Api("PAYMENT TYPE.: ");
        PrinterApi.PrnStr_Api("CARDHOLDER SIGNATURE:\n\n\n\n");
        PrinterApi.PrnStr_Api("--------------------------------");
        PrinterApi.PrnStr_Api("I accept this trade and allow it on my account");
        PrinterApi.PrnStr_Api("----------x------------x-------");
        PrinterApi.PrnStr_Api("\n\n");

        PrinterApi.printAddBarCode_Api(1, 300, 120, "12345");
        PrinterApi.PrnStr_Api("\n\n");
        PrinterApi.printAddQrCode_Api(1, 300, "www.szfptech.com");
        PrinterApi.PrnStr_Api("\n\n\n\n");


        PrintData();
    }

    public static int PrintData() {
        int ret;
        String Buf = null;
        while (true) {
            ret = PrinterApi.PrnStart_Api();
            Log.d("aabb", "PrnStart_Api:" + ret);
            if (ret == 2) {
                Buf = "Return:" + ret + "    paper is not enough";
            } else if (ret == 3) {
                Buf = "Return:" + ret + "    too hot";
            } else if (ret == 4) {
                Buf = "Return:" + ret + "    PLS put it back\nPress any key to reprint";
            } else if (ret == 0) {
                return 0;
            }
            return -1;
        }
    }
#End If

Sub GetActivity As Object
    Dim R As Reflector
    Return R.GetActivity
End Sub

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.
    Private xui As XUI
End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    Private NativeMe As JavaObject
End Sub

Sub Activity_Create(FirstTime As Boolean)
    
    Activity.LoadLayout("Layout")
    NativeMe.InitializeContext
    NativeMe.RunMethod("initialized_api", Array(GetActivity))
End Sub